{"product_id":"genuine-black-onyx-antique-flat-top-double-bevel-cabochon-with-hole-14x12mm","title":"Antique Flat Top Double Bevel Genuine Black Onyx with Hole","description":"\u003cp\u003eBlack Onyx, also known as black agate, is dyed black chalcedony. Chalcedony is composed of tiny quartz crystals not visible to the naked eye. Natural black chalcedony is exceptionally rare — virtually all black chalcedony on the market is grey chalcedony that has been chemically treated to achieve its characteristic shiny black appearance. Black Onyx remains the top-selling chalcedony in the jewelry market and was widely featured in Art Deco jewelry design. This genuine black onyx cabochon features a flat top with a double bevel profile and includes a hole, making it suitable for a variety of jewelry and metalsmithing applications.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGenuine black onyx (dyed black chalcedony)\u003c\/li\u003e\n\u003cli\u003eFlat top with double bevel profile\u003c\/li\u003e\n\u003cli\u003eIncludes hole\u003c\/li\u003e\n\u003cli\u003eUniform opaque black color\u003c\/li\u003e\n\u003cli\u003eTreatment: Dyed\u003c\/li\u003e\n\u003cli\u003eClean with warm, soapy water; ultrasonic and steam cleaning are generally safe\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eStone Type\u003c\/th\u003e\n\u003ctd\u003eGenuine Black Onyx (Dyed Black Chalcedony)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProfile\u003c\/th\u003e\n\u003ctd\u003eAntique Flat Top, Double Bevel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003ctd\u003eWith Hole\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd\u003eUniform Opaque Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTreatment\u003c\/th\u003e\n\u003ctd\u003eDyed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCare\u003c\/th\u003e\n\u003ctd\u003eWarm soapy water; ultrasonic and steam cleaning are generally safe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eAvailable Options\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e947-143\u003c\/td\u003e\n\u003ctd\u003e14x12mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"14x12mm","offer_id":47551766462678,"sku":"947-143","price":5.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/antique-flat-top-double-bevel-genuine-black-onyx-with-hole-otto-frei.jpg?v=1719954651","url":"https:\/\/www.ottofrei.com\/products\/genuine-black-onyx-antique-flat-top-double-bevel-cabochon-with-hole-14x12mm","provider":"Otto Frei","version":"1.0","type":"link"}